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Registry Review OB/GYN > Fetal Spine > Flashcards

Fetal Spine Flashcards

1
Q

the neural tube usually closes by ___ week

A

6th

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2
Q

at 26 weeks the spinal cord tip should be at the level of ___

A

S1

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3
Q

in the late 3rd trimester the spinal cord tip should be at the level of the ___

A

L3

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4
Q

what is the transverse landmark for the C spine

A

clavicles

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5
Q

what is the transverse landmark for the T spine

A

heart and stomach

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6
Q

what is the transverse landmark for the L spine

A

kidneys

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7
Q

what is the transverse landmark for the sacral spine

A

bladder

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8
Q

___: short spine

A

iniencephaly

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9
Q

are open or closed defects more common

A

open

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10
Q

spina bifida is best evaluated after ___ weeks

A

22

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11
Q

what is the most sensitive indicator for spina bifida

A

banana sign

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12
Q

what is a defect seen spina bifida occulta after birth

A

dimple or tuft of hair

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13
Q

what is the most severe form of spina bifida

A

rachischisis

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14
Q

S/A open defects

A
  • playing of vertebral process
  • u or v shaped vertebral segment
  • hermiation of tissues
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15
Q

what are some cranial findings associated with open defects

A

-smaller head
-frontal bossing
-obliteration of CM
-displacement of 4th vent
banana sign
-lemon sign
-colpocephaly
-hydrocephalus

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16
Q

___: abnormal lateral curvature of the spine

A

scoliosis

17
Q

scoliosis is associated with what things

A

limb body wall complex and amniotic band syndrome

18
Q

___: excessive posterior curvature of C/T spine

A

hypnosis

19
Q

___: teratoma formation from the pharynx

A

epignathus

20
Q

S/A teratoma

A
  • complex appearance with cystic, solid calcified areas
  • usually demonstrates increased vascularity
  • can cause posterior enhancement
21
Q

what kind of teratoma is identified as a mass protruding between the spine and the anus

A

sacrococcygeal teratoma

22
Q

___: mermaid syndrome

A

sirenomelia

23
Q

sirenomelia is associated with what things

A
  • bilateral renal agenesis
  • oligohydramnios
  • fetal death

Registry Review OB/GYN (31 decks)

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